How many countries are sending their criminals to the US border?

From the link:

The letter notes that there have been over 130,000 encounters with Venezuelan migrants between Oct. 2021 and July 2022.

In August, there were 55,333 unique encounters from Venezuela, Cuba and Nicaragua, a 175% increase over last year. Venezuelan migrants are harder to remove both due to lack of diplomatic relations with the country and also the related human rights concerns of returning migrants to authoritarian regimes.

“As a result of the Biden administration’s disastrous border policies, it is unknown how many of the violent Venezuelan prisoners have been released into the interior of the U.S., as identifying Venezuelans with criminal records is nearly impossible unless the individual admits their records to U.S. authorities,” the lawmakers say in the letter, obtained by Fox News Digital. “This will undoubtedly put our country in grave danger.”

I started another thread asking exactly how the heck can we genuinely vet the over a million people that the Biden Administration is happily letting into the country? No one provided an answer.